Jenni Murray, journalist and presenter of Radio 4’s Woman’s Hour celebrates the lives, struggles and achievements of the brilliant women who have profoundly influenced the shaping of our world, from Joan of Arc to Benazir Bhutto and from Catherine the Great to Marie Curie.  They led while others followed, stood up and spoke out when no one else would and broke the mould in art, journalism and politics. Each fought, in her own way, for change. In conversation with Pamela Armstrong.